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Nano (symbol n) is a unit prefix meaning one billionth. Used primarily with the metric system , this prefix denotes a factor of 10 −9 or 0.000 000 001 . It is frequently encountered in science and electronics for prefixing units of time and length .
Template: Metric prefixes (inline table) 23 languages. Azərbaycanca; ... nano pico femto atto zepto yocto ronto quecto; Prefix symbol d c m μ n p f a z y r q
The metric system is a system of measurement that standardizes a set of base units and a nomenclature ... nano n 0.000 000 ... and the mass of a mole of table salt is ...
The International System of Units, internationally known by the abbreviation SI (from French Système international d'unités), is the modern form of the metric system and the world's most widely used system of measurement. It is the only system of measurement with official status in nearly every country in the world, employed in science ...
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic.Each prefix has a unique symbol that is prepended to any unit symbol.
Metric units are units based on the metre, gram or second and decimal (power of ten) multiples or sub-multiples of these. According to Schadow and McDonald, [ 1 ] metric units, in general, are those units "defined 'in the spirit' of the metric system, that emerged in late 18th century France and was rapidly adopted by scientists and engineers.
Conversion of the Mach unit of speed depends on the altitude at which the speed is measured. That altitude should be specified either in feet (for example, |altitude_ft=10,000) or in metres (for example, |altitude_m=3,749). The altitude cannot be determined accurately and only a whole number is accepted.
During that time the metric system had undergone a number of changes, particularly in science and engineering. Some industries were based on the CGS variant of the metric system and other on the MKS variant. In 1960, the CGPM published the International System of Units (SI), a coherent version of the metric system based on the MKS variant ...
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